Antenna apparatus and electronic device

Provided is an antenna apparatus. The antenna apparatus is applicable to an electronic device having a flexible screen, wherein the flexible screen can be bent at a rotary shaft, and the flexible screen comprises a main screen and a secondary screen, and the main screen is connected to the secondary screen through the rotary shaft. The antenna apparatus may comprise a first metal strip arranged at a main screen frame close to one end of the rotary shaft, and a second metal strip arranged at a secondary screen frame close to the same end of the rotary shaft, wherein the first metal strip may be implemented as a multi-antenna by using a double-feed design; and when the flexible screen is folded, the first metal strip may be coupled to the second metal strip to generate radiation, and at this moment, the second metal strip may serve as a parasitic antenna of the first metal strip. In this way, the second metal strip arranged at the secondary screen frame can be effectively used, the radiation efficiency of the first metal strip arranged at the main screen frame is improved, antenna performance of the first metal strip is optimized when the flexible screen is folded, and the difference between antenna performance when the flexible screen is folded and when the flexible screen is unfolded is reduced.